Mitsubishi Electric FR-A700 EC, Instruction Manual

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Position control by vector control Parameter
6 - 140
6.5.5 Setting of positioning adjustment parameter (Pr. 426, Pr. 427)
The above parameters can be set when the FR-A7AP (option) is mounted.
When the operation panel (FR-DU07) is used, the maximum setting is 9999. When a
parameter unit is used, up to the maximum value within the setting range can be set.
In-position width (Pr. 426 )
The Y36 signal acts as an in-position signal.
When the number of droop pulses has fallen below the setting value, the in-position signal (Y36)
turns on. For the Y36 signal, assign the function by setting "36" (source logic) or "136" (sink logic)
in any of Pr. 190 to Pr. 196 "Output terminal function selection".
Excessive level error (Pr. 427)
When droop pulses exceed the value set in Pr. 427, position error large occurs and displays an
error (E.OD) to stop the inverter. When you decreased the Pr. 422 "Position loop gain setting",
increase the error excessive level setting. Also decrease the setting when you want to detect an
error slightly earlier under large load.
When "9999" is set in Pr. 427, position error large (E.OD) does not occur regardless of droop
pulses.
Pr.
No.
Name
Initial
Value
Setting Range Description Parameters referred to
Refer to
Section
426
In-position width 100 pulses
0–32767
pulses
When the number of droop pulses
has fallen below the setting value,
the in-position signal (Y36) turns
on.
—
427
Excessive level error
40
×
10
3
0–400
×
10
3
A position error excessive (E.OD)
occurs when the number of droop
pulses exceeds the setting.
9999 Function invalid
Vector Vector Vector